Box



Nov. 22, 1927. 1,650,052 H. B. SMITH BOX Oriinal Filed Jan, 12. 1923 Haw/yin tially '35 the side wings causing atented Nov. 22, 192?.

HARRY nnrneman SMITH, or NEW To noaoun-srmoun CORPORATION,

TION or MASSACHUSETTS.

YORK,

N. Y., ASSIGNOR, BY MESH-ASSIGNMENTS,

0E LYNK, MASSAGHUSETTS,'A CORPORA- BOX.

. Original application filed January 12,1928, Serial No. 612,172. Divided and this application filed July 17,

1926. Serial No. 123,201.

application is a division of my ap pl1cat1on,'Ser. No. 612,172, filed January 12,

1923, for boxes and methods of producing them, and relates to the box structures dis- 5 closed in said application. a

An important object of the invention is to provide a box of 'novel construction which may be economically produced and in which wall bulging or warping is avoided by the structure of the box.

More particularly stated, the object'isto provide a box or box blank in which certain parts are made of separate pieces of material in order to facilitate the formation of the blank into a box and to avoid warping of the walls which frequently occurs in cardboard shell boxes when the side walls are integral with the bottom section (or top section) of the box part. In the present embodiment of the invention, the central or body section .of the shell blank is integral with the end wings, and each side wing with connected corner laps, is distinct and originally separate from the body and endv Wing section, these side wing sections being connected to the body section by foldable material such as a reenforoing or hinge strip, or'by a cover sheet, or by both a hinge stri and cover sheet. The connecting materia is substan thinnerthan the shell material, and admits folding the side wings without any strain thereon, either in the act of folding or afterthe partsare secured'in final form, and therefore there is no forceexerted upon them to warp or pens in boxes of orbul e as frequently be g e by ordinary methdinary structure or ma ods. I

Another object is to provide a structure 40 which realizes some or all of the above stated objects or advantages, and is -made in the form of a simple uncovered shell, or a covered shell with or without connecting strips additional to the cover. material.

The characteristics andadvantages of the invention are further --sufliciently explained in connection with scription of the accompanying drawing, which shows one representativeembodiment of the invention.

ample, skilled persons'will understand that Fig. 4 isa section at H,

' distinct parts, represented in the present the following detail de-- After considering this exmany variations may be made, and I contemplate the employment of any structures that areproperly within the scope of the appended claims;

In the drawings:

Fig. 1 is a perspective view of a-box blank embodying'the invention in one form.

Fig. 2 shows the blank partly folded.

Fig. 3 shows the complete box part made from the blank of Fig. 1.

Fig." 2.

Fig. 5 is a fragmentary section of' the blank at 55, Fig. 1, in inverted position.

Fig. 6 is a similar section showing a slight modification.

- Fig. 7 is a fragmentary section at 77, Fig. 1. a, t

The complete box'part is usually made by first producing a blank in flat form, as shown in Fig. 1. This blank includes a layer of shell material, usually cardboard, straw board, chip board, or the like, in several 5 cific example by the main central or bdd y section a with ntegral end wings ddefined by score or crease lines which are in this exam 1e, bead creases 7s; and side portions 6 with integral endor corner-laps c'defined by bead creases in. The and wings may have extensions 6 definedby bead creases Z, for purposes hereafter explained, or these may e omitted.

The shell material constituting the strips Hot and b--00 are of course, much narrower than is necessary for ordinary structures and methods, terial must be full width of the flat blank, and a great economy is therefore effected in many cases because,'for. boxes of-manydimensions, all of the stripsand for the larger boxes the narrowerstrips may often consist of material which would otherwise waste, and may,.in fact, be trimmings produ'ced, for example, in the production of other boxes. But even if. such material is not available, the structure involving the separate shell strips is desirable forvarious reasons exp therefore in some cases the str1p material a'wide roll may be split to pro uce the sepawherein the shell malained above and hereafter, and 'm0 is provided in rolls of the pro erwidth,'or

v slit or cut away longitudina 1y,

lmes parallel with the inner edges of wings I edge; or the rial or both extending rate strips before or as an early p)art of the corner formation It, Fig.4, the previously production of the blanks, either y what I spaced adjacent edges of the respective shell call continuous methods of my -invention, as sufliciently explained in the above identified prior application, or any other method suitab e for t e production of the present structures.

The separate strips are usuall spaced substantially apart, as shown in igs. 1, 5, 6' and 7, and are connected together by connecting or hinge strips H, or by cover material C, or by both of these materials. If it is not desired to provide a covered box, of course the cover material is omitted, or in some cases when suitable cover material is used, having the requisite strength, folding qualities, etc., the distinct connecting or hinge strips H may be omitted. For, the greatest stren th and stability, as well as to provide a Zhig y finished covered box, both connecting materials are usually employed. When the blank is produced by continuous ,methods of my invention, the connecting or hinge strips H, usually extend to the ends,

of the blank, because the blanks are severed from a-' continuous assembly in which the hinge strips, as well as the other materials, are longitudinally continuous; but when the blanks are produced by other methods it is not necessary for' the connectin or hinge strl s to extend longitudinally eyond the fol lines or creases k, is. The connecting strips are adhesively applied and consist of almost any suitable sheet material 'having the desire qualities, kraft pa er being a good example of suitable materia although other paper or even woven fabric may be used in some cases.

' When 'a covered boxis desired, the cover sheet 0 is applied to one face of the complete shell layer, usually the side to which the connecting strips H are ap lied so that the latter will be concealed in t e completed box, and. longitudinal margins m of the cover paper may be provided when desired, turned and secured to opposite margins of the shell strips b'cc to provide a covered margins maybe omitted if an elx) osed or raw shell edge is not objectiona e..

If the blanks are roduced by the continuous method with inge or cover mateto the ends of the .wlngs c-d, these connectin materials are usually on .0 and the outer longitudinal edges of wings d to provide for proper end and cornen wing separation. I I

The blank is folded in the manner sufiic'iently explained in Figs. 2 and 3, the fold mg or erection of the side Wings 6 being accompanied by the bending. of the hingestrips or cover paper, or both, producing the strength, toughness .and folding strips being brought nearly or actually; in contact, with the connecting materlals smoothly overlying the 'joint. Since the connecting material is relatively flexlble, the folding on longitudinal lines is easily accomplished without any strain upon the shell material and therefore there is 'no tendency to warp or otherwise impair the desired straight, flat form of the material and especially the .side wings I), which are often warped or otherwise distorted when the .shell blanks are of a single piece of material. The cornerlaps 0 are turned inward as shown, and usually their confronting edges fit quite close together but are shown somewhat separated in order to better explain the structure.

The end wings are now turned up andsecured by-adhesive, as sufliciently indicated by stippling. l/Vhen end wing extensions e are provided, these are folded over and se-'v at the ends than at the sides, because when placed on shelves the ends are usually outward and the end edges are grasped in pullingthe boxes from the shelves and are often broken if the end structure is not substantial. The reenforcement provided by the end wing extensions enables these boxes to stand unusually rough treatment without failure. g

The blankand box described do not include any provision for covering the shell edges of the end wingsd along the lines w, Fig. 3, but this is unobjectionable in many cases and if it is desired to cover or conceal these edges, projecting portions of the cover material maybe provided for that purpose, as explained in other pending applications.

The bead creases such as k, 70 are desirable in man cases, because they initially break orset t e shell material in creased form and then when the parts-are bent to final position the material folds readily along the crease'lines without cracking or breaking. ,The folded crease formation usually includes internal beads or projections such as in" Figs. 2 and 4. Any other style of crease or fold formation may be employed.

In producing the blank the hinge strip or cover. mater al, or these two proposed materials, may lie straight and fiat across the space between the strips of shell material, such as a, b, Flg. 5, or to aid in the proper spacing in the shell strips and for other reasons, the connecting material or materials may be somewhat indented or depressed Into the space between adjacent edges of the shell strips, as at h, Fig. 6.

It will now be understood that the invention in one of its broader aspects consists in providing a box blank'or shell consistingof several distinct or originally separate strips of shell material, secured together by suitable fiexible sheet material, to facilitate the folding of th warpage and for other reasons, as fully explained above, and this important featureof the invention'is not limitedtothe particular type of blank or box shown, butmay be incorporated in other blanks or boxes having various wing format-ions, either uncovered boxes or those covered by the tight or loose wrap method.

I claim: I

1. A box comprising a plurality ofstrips of shell material connected by adhesively applied relatively narrow strips of hinge material, and a sheet of cover material adhesively secured to and entirely covering one face of the combined shell strips over the hinge strips. 4 y

2. A box blank comprising a plurality of strips of shell material foldably connected by adhesively applied strips of; relatively narrow, thin, tough, sheet material, and a sheet of cover material adhesively secured to and entirely covering one face of the combined shell strips over the hinge strips; said blank including a central or body section with integral end wings, and side wings with integral corner laps. I 3. A box blank comprising a plurality of parallel strips of shell material connected b adhesively applied strips of hinge materia and a sheet of cover material adhesively secured on one face of the combined shell strips 'over the hinge strips, the blank being provided with transverse fold lines'defining end wings integral with one of said strips and corner laps integral with the other of 'saidstrips.

4. A box structure comprising a plurality of separate pieces of shell or body material connected together along certain corner lines of the box structure by angularly folded and. adhesively secured strips of hinge material,

the'box shell structure being substantially covered by adhesively secured sheet cover material overlying the connecting strips.

j 5. A paper box comprising a strip of shell material including a central or box body. portion'and end wingporticns, two separate side strips of shell material each including a side wlng portion and corner lap portions, said shell strips-being .foldablysecured together alongthe edges of the body and side wing portions by thinner applied materlal,

e blank to. box form, without outward surfaces of the shell strips being covered by shell covering material, said side :and end wings being turned up, the corner laps turned inward and the end wings turned up and secured to the corner la s.

.6. A paper box comprising a strip 0 shell material including a central or body portion a and integral end wing portions, two side strips of shell material each including a side wing portion and integral corner lap portions, said shell strips being secured together alongthe edges of the body and side wing'75' portions by hinge strips of flexible sheet material adhesively secured to margins of the shell material, outwardsurfaces of the shell strips being covered'iby adhesively applied sheet covering material, said side and 30 end wings being turned 11 the corner laps. turned inward, and the en wingsturned up and secured to. the corner laps.

7. A paperbox formed of a covered blank comp'risin three substantially parallel strips of sell material, the central strip including a box body portion and integral end wing portions, and the outer strips including side wing ortions and integral corner lap portions,"t e body and side wing portions of the-shell -strips being foldably secured together by strips of. flexible sheetmaterial, similar surfaces-of all of said strips being covered b sheet -cover material, the

blank bein fol ed and secured in box. form with the side Wing's turned at right angles to the body, the corner la 5 turned in at right angles to the body an theside wings, and the end wing's'tu'rnedat right angles, to

the bodyand secured against outer .faces of jacent margins of said shell strips, similar ortions,]and the outer strips includv ble. sheet material adhesively secured to ad I surfaces of all of said strips being covered .by sheet cover material adhesively secured, the blank being folded and securedrin box form with the side-wings turned atrig'ht angles tothe body, the cornerla s turned in at right angles-to the body. an the sidef' wings, and the end wings turned at right angles to the bodyand secured against outor .faces of the corner laps. I Signed at New York city, in the county of New 14th day of July A. D. 1926.

HARRY. BRIDGMAN SMITH.

York. and State of NewYork this i 

